Near-field optical photoluminescence microscopy of high-density InAs/GaAs single quantum dots

Eah, Sang-Kee; Jhe, Wonho; Arakawa, Yasuhiko
April 2002
Applied Physics Letters;4/15/2002, Vol. 80 Issue 15, p2779
Academic Journal
We performed low-temperature near-field optical photoluminescence (PL) microscopy of a high-density (>100 μm[sup -2]) sample of single InAs/GaAs quantum dots (QDs) with very high spatial resolution. Six single QDs of different emission energies are spatially resolved with an apertured fiber probe of 200 nm diam by taking the complete PL spectrum at each point, while the scanning area is 250×250 nm[sup 2]. © 2002 American Institute of Physics.


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